If Canon made any "mistake" with the M line, it was with the M mount, in the first place. There really was no reason to go to a smaller than 54 mm lens mount diameter, except that Canon never foresaw mirrorless cameras displacing SLRs. The M was intended to compete with Four-Thirds.
Ten years later, we can see the writing on the wall. Canon is attempting to close an unfortunate chapter in their history, has shifted back to 54 mm lenses with the RF mount, is now producing APS-C cameras in the R line, and will in short order discontinue the M line because it simply does not make economic sense to continue to make three different lens mounts. As it stands, Canon has released no new M lenses in four years.
The R line cannot replace the M line...yet. But it soon will. That doesn't mean the M line isn't capable of great photography, and as of obsolescence, well, my 1977 Nikon FM body still works. Not that I expect digital cameras of 2022 to still be functional in 45 years (the FM is fully mechanical aside from the light meter), but they will still be great cameras for some time to come.
I could not disagree more. I think it was a brilliant move by Canon.
I won't tell you not to buy an M6mkII, if it does what you need it to do, today and for the foreseeable future. I myself am trying to justify *not* buying an M50mkII and EF-M 22 mm f/2 STM.
I’d recommend getting some of that M System sweetness for yourself before you talk yourself out of it! ;-)
Actually experience some of that Goodness that some of us have been for many years now! :-D
R2
Maybe I didn't make myself quite clear. Right now, I have no real investment in any particular system, and the more I look, the more it becomes clear that the right camera and lens for me right now is the M50 Mk II with the EF-M 22 mm f/2 STM. I keep looking for reasons to say otherwise, and I keep not finding them.
Creating the M system in 2012 may have seemed like the right move at the right time, and that's why I put "mistake" in quotes. It wasn't a mistake, clearly, given the state of the market at the time.
But a decade later, the M system just doesn't make sense for the next decade, from a manufacturing standpoint.